Alert archive / Kansas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 21, NWS Dodge City, KS

May 20, 2011Pratt County, Kansas

NWS Dodge City, KS issued this severe thunderstorm warning at May 20, 2011, 6:50 PM CDT for Pratt County, Kansas. It was in force for 40 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 20, 2011, 6:50 PM CDT (23:50 UTC)
Expired: May 20, 2011, 7:30 PM CDT
In force: 40 min
Issued by: NWS Dodge City, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Pratt County, KS

The radar

The Wichita radar (KICT), 105 km from the middle of the area, began a volume at 23:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where
May 20, 7:04 PM CDT	HAIL 0.75	Pratt, KS
May 20, 7:24 PM CDT	HAIL 0.75	2 E Pratt, KS
May 20, 7:34 PM CDT	HAIL 0.88	4 E Pratt, KS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 20, 2:32 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 11.8 hours before the alert went out and 112 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3052 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: -59 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

374 
WUUS53 KDDC 202350
SVRDDC
KSC151-210030-
/O.NEW.KDDC.SV.W.0021.110520T2350Z-110521T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DODGE CITY KS
650 PM CDT FRI MAY 20 2011

THE NATIONAL WEATHER SERVICE IN DODGE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PRATT COUNTY IN SOUTH CENTRAL KANSAS...

* UNTIL 730 PM CDT

* AT 645 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  PRATT...AND MOVING NORTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PRATT...
  IUKA...
  CAIRO...
  MAINLY RURAL AREAS OF PRATT COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. IF CAUGHT OUTSIDE
SEEK A STURDY SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM HAS
PASSED.

&&

LAT...LON 3751 9879 3767 9890 3783 9858 3782 9847
      3778 9845 3762 9846
TIME...MOT...LOC 2350Z 240DEG 10KT 3764 9874
WIND...HAIL 60MPH 1.00IN

$$

GERARD

1 follow-up statement

606 
WWUS53 KDDC 210030
SVSDDC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DODGE CITY KS
730 PM CDT FRI MAY 20 2011

KSC151-210040-
/O.EXP.KDDC.SV.W.0021.000000T0000Z-110521T0030Z/
PRATT KS-
730 PM CDT FRI MAY 20 2011

...THE SEVERE THUNDERSTORM WARNING FOR PRATT COUNTY HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER SMALL HAIL...GUSTY WINDS AND HEAVY RAIN ARE STILL
POSSIBLE WITH THIS THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM CDT.

LAT...LON 3751 9879 3767 9890 3783 9858 3782 9847
      3778 9845 3762 9846
TIME...MOT...LOC 0030Z 249DEG 10KT 3767 9862

$$

GERARD

The office that day

Everything else NWS Dodge City, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 19, 7:17 PM CDT	Severe Thunderstorm Warning	DDC	Ford	43 min
May 19, 7:39 PM CDT	Severe Thunderstorm Warning	DDC	Hodgeman	51 min
May 19, 8:10 PM CDT	Severe Thunderstorm Warning	DDC	Hodgeman, Ness, Pawnee, Rush	50 min
May 19, 8:24 PM CDT	Special Weather Statement	DDC	Trego	51 min
May 19, 8:35 PM CDT	Severe Thunderstorm Warning	DDC	Clark, Edwards, Ford	40 min
May 19, 8:44 PM CDT	Severe Thunderstorm Warning	DDC	Ford, Hodgeman	46 min
May 19, 8:48 PM CDT	Tornado Warning	DDC	Ellis, Rush	27 min
May 19, 9:07 PM CDT	Special Weather Statement	DDC	Gray	38 min
May 19, 9:15 PM CDT	Severe Thunderstorm Warning	DDC	Ellis, Pawnee, Rush	45 min
May 19, 9:27 PM CDT	Severe Thunderstorm Warning	DDC	Ford, Gray	48 min
May 19, 9:58 PM CDT	Areal Flood Warning	DDC	Rush	6 hr
May 19, 10:05 PM CDT	Special Weather Statement	DDC	Hodgeman	40 min
May 19, 10:33 PM CDT	Severe Thunderstorm Warning	DDC	Pawnee, Rush	42 min
May 19, 11:04 PM CDT	Severe Thunderstorm Warning	DDC	Pawnee, Rush	26 min
May 20, 3:27 AM CDT	Special Weather Statement	DDC	Pawnee	33 min
May 20, 5:37 PM CDT	Severe Thunderstorm Warning	DDC	Pratt	38 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2011 Every severe thunderstorm warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.